Key machine



H. BEISSER KEY MACHINE March 22, 1932.

Filed Feb. 24,1950 5 Sheets-Sheet /4 U INVENTQR ATTORNEY March 22, 1932. H. BEISSER 3 KEY MACHINE Filed Feb. 24, 1930 s Sheets-Sheet 2 INVEN R ATTOR N EY March 22, 1932. H. BEISSER KEY MACHINE Filed Feb. 24, 1930 I: Sheets-Sheet 5 INVENTOR' ATTORNEY Patented Mar. 22, lsz k a t i UNITEDSTATES PATENT oFFi'cE V i: i 7' iIARRY nEissnn; or IIJETROIT; nicnreliiv V I v KEY MACHINE I it Application fiiearetniar 'z z, 1930i Serial'No.-430;925. I

My invention relates to a machine for outbroughtintoactionto duplicate keys of diftin or dupli'catin keys shown in the acferentt es Without the necessit of removcoliipanying drawi gs and more particularly ingdeta tl iable and previously inbunted "cutdescr bed in the following specification and ters and guides from'th'e, machine. In this I claims. f I I machine there is no necessity to look'forthe m The ob]ect of th1s 1nvent1on is to provlde required cutter and guide in a tool rack or a key machine in which one of a plurality of upon the key bench, when prepa-rlng to duguldtes 11s adafpgeg to etntter tl151g11O0VeS ofia pll cirtekejyiof atnhy gypeilthpfreliy elciml nating mas er eyo 1 eren ypes W11 e 2.0001 1- 1e oss 0 ime a suc e or en a1 s.

" nating cutter is engaged in cutting corre- By manually rotating the sleeve, the 'reto spending grooves ina key blank of similar quired cutter and respective guide for varitype ;the -g111d85 and cuttersbeing respecous flat, cylinder, or hit keys in general se tively supported upon a pa rof turret-heads aneq uicklyand accurately broughtglnto regspaced apabrlt by a sleeve lll'lteglfl iherewith lstrat og with a pair ofcla1np1ng members and rotata e in a journa carrie y a supcesigne to support amaster ke and "coris. porting column rising from the base plate. responding key blank 0f the tg pe to be The guides and corresponding'cutters are raduplicated. 1 dially aligned upon the respective turret- Another, feature of this invention is the M heads and are free to turn with the sleeve in means provided for locking the sleeve carthe bearing,when released,that the guides rying the turret-heads, with the proper out- Ti; and cutters may be shifted into position to ters and uides in'fixed alignment with the act in conjunction With a master key, and corclamping? members supporting the master lresponc lli pg keyt blfllllk forc'1 cluttirllg similar key andii ey btllanki'alfso tilet 1meantstemplrtrlyied M (eys. 1e mas er eys an icy an s are or coup mg- 1e sia 0 -ie on er W1 a held by gripping jaws carried by a longitudidriving shaft actuated by an electric motor 7:. nallyilnliovagletyokel, mount-e11 (pponr shift HIKXIIUHI upfontthe befdgiallate of tt-he maehinte. para e W1 -1 19, s eeve inc u 111 is in -ey no 1er ea ure 0 e inven lOIl'COIlSlS s gral turret-heads, and their respective'guides in providing means for automatically shiftand cutters yvhereby a suitable cutter and ing theyokewhich mayalsobe manually guide carried by the turret-heads may be operated-carrying the clamping devicesfor an brou ht into proper relation With the niassupporting themaster key and key blank in a ter key laind ke ylblank1 for duplication of the relation to the guide and the cutter, Where master 'ey. ie y i'e-supportl ng' mem 61" b the rooves in the ke are automaticall' M is adapted for either mechanical or manual diplicazeL y by i n p i s f e ui \Vith the foregoing and other objects in #33? p ated g g g -gufig 32323 2? Vievv which will appear as the description. 11,? V 111 5: e 0 d or a h proceeds, the lnventlon further resides in the 6 cu q i zg f it t1 6 comblnation and arrangement of parts and n m a i 7 y up the details of construction hereinafter de G i b d t t] a f scribed and claimed, it being understood that W i now ma 0 p chan es may be made in the precise embodimary'features of this invention conslsts in f th ti 1 i 1 d providing a machine wherein the different i n F5 1 cutters and guides required in the duplicaeijar mg lespln i tion of keys of different types are respectivehe drawlngs accompanylng 9; 1y assembled upon apair of'turretheads, ficalloni v V spaced from each other by a sleeve integral g 1 a P n V1eW of h machlne with the heads and rotatable in a suitable by a motPlrmounted P the b d o journal bearing whereby theg'uide and corplate of the;mach1ne. i h.

n responding cutter may besimultaneously F1gure 21s a front elevation of the same. 100

Figure 3 is a side elevation of the'machine and motor.

Figure 4 is an elevation of the machine taken from the side opposite that shown in Figure 3.

Figure 5'is a vertical sectional elevation of a detail of the driving connection, taken on or about line 55 of Figure 2. a

Figure 6 is a detail, sectional view through one of the cutters.

Figure 7 is a cross-sectional view through a ward cutter, taken on or about line 7-7 of cated in Figure 8, showing the cutter and guide effecting a like operation upon the opposite side of the key bit.

, journaled ret-heads-H and'I at each end of the sleeve.

Figure 11 is a fragmentary elevation of the detailshown in Figure 10, of a like character to that shown in Figure 9.

Figure 12 is a fragmentary elevation of the cutter and. guide shown in the preceding views acting upon a flat key and key blank.

Figure 13 is a fragmentary elevation at right angles to the preceding view showing the cutter forming a longitudinal groove in a fiat key.

Figure l4 is a fragmentary elevation showing the cutter forming the upper ward groove across the face of a bit key.

Referring now to the letters of reference placed upon the drawings:

A denotes the base plate of the machine adapted to be secured to a counter or other suitable support.

B indicates an electric motor, B a pulley mounted on the motor shaft connected by a belt C with a pulley D mounted on a shaft D j ournaled in bearin s supported by a divided post E, extending upwardly from the base plate.

F denotes a column rising from the base plate for supporting a bearing F in which is i a sleeve G carrying integral tur- The turret-head H on its outer face is provided with a plurality of clamping members J, which are adapted to support a plurality of rotary cutters K of varying form, whereby grooves of different size'and shape may be cut in a key blank.

The clamping devices for supporting the cutters consist of a short shaft J extending transversely through the turret-head with a Cf nut J pinned to the shaft overlappingthe turret-head on one side and a flange J overlapping the other side of the head and an adjustable nut J having a projecting sleeve J formed with a notch J see Figures 1 and '6, to receive a driving pin L projecting from the shaft D actuated by the pulley D.

'F is a bracket arm integral with the bear- 5";

ing F to which is pivoted a rocking arm N. N is a lock pin pivoted to the arm N adapted to enter a plurality of holes N", boredin the inner face of the turret-head H to lock the sleeve G and turret-heads H and I, againstaccidental rotation. N is a spring engaging the swinging arm N and the bracket G for maintaining the pin N in locked relation until manually released.

P is a swinging yoke may be vertically adjusted upon a pair of pins Q rising from the bell-crank and P of the yoke, sleeved upon the threaded portion R of a shaft R, j ournaled in suitable bearings R R at each side of the machine. P P are stationary clamping aws integral with the forked arms of the yoke, respectively provided with an upstanding tongue P which the inverted U-shaped adjustable aws v a S, S are adapted to straddle.

T is an adjustable wing bolt extending downwardly through a bore in each of the adj ustable jaws intothe fixed aws P by the adjustment of which a master key is gripped by the clamping j aw S and a corresponding key blank is gripped by the adjustable jaw S P, P are handles screwed into the yoke for raising and lowering the latter, which are also adapted to engage the pins Q, whereby the yoke may be held in its adjusted position. U denotes a tilting arm, pivoted at L 1 to a bracket projecting downwardly from the yoke fixture P and at one end is directed upwardly with a threaded portion not shown) adapted to engage the like threaded portion 4 4 R on the shaft R. U denotes a spring engaging at one end the tilting arm, and at the other end the yoke fixture P to maintain divided at P that it the threaded end portion of the tilting arm in mesh with the threaded portion of the shaft R, whereby upon rotating the shaft R, the clamping jaws carried by the forked arms of the yoke fixture will traverse the shaft R, carrying the master key and corresponding key blank in operative relation to the cutter and corresponding guide until manually released by tilting the arm U. I 7

To provide for a driving connection between the shaft R and the driving shaft D, an inclined shaft V, sleeved in a l'iearing V- is fitted at its upper end with a worm-gear W, in mesh with a corresponding gear W on the shaft D and at the lowerend of the shaftV is. aworm gear X, in mesh with a worm gear X mounted onthe shaft R; a

Means for cutting a ward groove in the face of a bit key, or a longitudinal groove in the face of-a flatkey, is provided by a cutter Y'see Figure 7 -mounted on a shaft Y extending outwardly from the periphery of the turret-head H. Y is a worm gear on the shaftY in mesh with a like ge'ar Z mounted upon a shaft Zf rextending transversely through the :Wall' of the turret-head and the fitting Hflchambered to receive the gears Y and Z. One end ofthe shaft Z is fitted with a nut Z overlapping the turret wall with a setscrew Z to secure the nut in position. The other end-of theshaft Z is provided with an enlarged head Z over1apping the fitting H -and a screwnut Z having a projecting annular collar Z provided with an inclined slot Z to receive the driving pin L of the drive shaft1D ,see Figure 1. V r v Having indicated the several parts by reference letters, theconstruction and operation of the machine will be readily understood. r j p Let it be assumed that a flat key is to be duplicated,to perform, this. operation, the master key is first secured'between the adjustable jaw S and the fixed jaw P ,with

the notched portion of the key turned toward the turret carrying the guides.

A key blank of a type similarto the master key is then inserted betweenthe adjacent adjustable jaw S v and the fixed jaw P of the swinging slidable yoke P see Figurel of the drawings. The arm N is then rocked to release the pin N, from engagement with the cutter carrying turret-head H, which be .ing integralwith thesleeve G, and the latter with the turret-head I,,i-s then manuallyrotated in the bearing F t0 bring the proper guide and cutter respectively into guiding relation with the master key, and simultaneously into cutting relat on .with the corresponding key blank, whereupon the turretheads H and I are again locked against rotation by the pin N entering a hole N adjacent the cutter ;a locking hole NF being located adjacent eachcutter in the turrethead H to secure the turret-heads against rotation. Before starting the; machine, the

shaft of the required cutter is locked'in axial alignment with the drivingshaft by the driving pin L, which projectsfrom each side of the driving shaft into inclined notches J5,

formed-in the projecting-sleeveof the nut Jiscrewed upon the end of the shaft J of the clamping device for holding the cutter.

The motor is then started by operating-a suitable switchnot shownthe, yoke, carrying .themasterkey andkey blankvb'eing inand key blank uponthe pins Q,

key blank is thenrocked upon the shaft R toward the guideand cutting tool the turret-heads H and I. i :.Upon the guide M entering the groove of the master'key, the cutter Kstarts cutting a corresponding-groove in, the key blank,the operator raising and lowering that portion of the yoke member; carrying the \ma'ster key Q by means of the handles Pt, P, in front of the cutter until a notch of the proper depth is cut, regulated by the guidesM contacting with the body'of the master key at the bottom of the corresponding notch therein."

carried by To. adjust the segmental eccentricguides M to the depth of the grooves in the master key, the set screws M are released suflic iently, to permit the guides'to rock into contact with the wall of thevkey at the bottom of the groove,thegset screw M i is then adjusted to secure the guide against release.

To shiftj thezshaft'D longitudinally that the pin Lr'inay enter the notches J ofthe sleeve nuts J secured to the drive shafts of theseveral cutters,or to release theshaft therefrom as may be required,the operator rocks the swinging latch bar D pivoted at D to a bracket secured to the post E, that the pin D projeeting from the latch bar into a peripheral groove in the shaft D -may move the shaft longitudinallyf see Figures-1 and 2' into or out of driving connection with the each side of the key-bit and transversely across its face, as well as longitudinally upon a flat key. To out these called bittinggrooves at the end of a key-bit,the master key and key blank are first secured by the clampin'g'jaws in proper relation to'the cutters and guides to effect the desired cuts in the bit of the key blank, obtained in like manner as has been previously described.

When cutting transverse or ward grooves across a bit-'keyor other like sustained cutting operation, the upturned helical end-not shown of the tilting shaft is caused to engage the helical portion of the shaft D, whereupon the tilting yoke carrying the clamping jaws supportingthe key blank and master key is automatically shifted into cooperating .1 and key blank,

-. manually rotatable relation with the cutter Y and guide'Y carried by the rotatable turret-heads to out a duplicate of the master key,-the yoke being released from driving connection with the shaft D on manually raising the tilting arm U upon the completion of the cutting operation.

It will be understood that upon the operator grasping the handles P P to raise the clamping members holding the master key the guide Y will enter the groove in the masterkey and that the cutter Y will cut a groove in the key blank corresponding in depth to the groove in the master key, as determined by the guide member upon entering the groove.

Having thus described my invention, what I claim is: y a

1. In a machine of the character described, the combination of a supporting frame; a unitary element includ ing a pair of turret-heads spaced apart in fixed relation to each other; a plurality of cutting tools mounted in spaced relation on one of said turretheads contiguous to its perimeter; a plurality of co-ordinating guide rocking member members mounted on the other turret-head contiguous to its perimeter and in longitudinal alignment with the respective cutting tools of the adjacent turret head; a slidable adapted to support a master key and also a key blank and to be longitudinally actuated either manually or mechanically in relation to the tools and guides carried by said turret-heads; manually operated means for locking and releasing sa1d turret-heads when rotated to bring the tools and guides of said turret-heads into cooperative relation with the master key and key blank, a driving shaft, means for actuating the driving shaft; and means whereby the cutting tools of the turret-head may be coupled with the driving shaft to actuate the respective cutting tools;

2. Ina machine of the character described the combination ofa supporting frame, a

manually rotatable unit comprising a pair of turret-heads journaled in the frame, a plurality of cutting tools mounted on shafts carried by one of said turret-heads, a plurality of segmental guide members carried by the other turret-head in longitudinal alignment with the cutting tools of the first named turret-head, a prime mover, a driving shaft actuated by the prime mover, coordinating coupling elements respectively carried by the drive shaft and theshafts of the respective 7 cutting tools, whereby the lattermay be actuated by the drive shaft; manually operated means for longitudinallyshifting the drive shaft into or out of coupling relation with the coupling means of the respective cutters; and means for supporting a'mastcr key and a key blank,whereby they may be respectively brought into co-operative'relation with a suitable cutter and guide that the master key may be duplicated in the key blank.

3. In a machine of the character described, the combination of a supporting frame; a manually rotatable unit comprising a pair of turret-heads journaled in the frame; a plurality of cutting tools mounted on shafts carried by one of said turret-heads; a plurality of adjustable segmental guide members, carried by the other turret-head in-longitudinal alignment with the respective cutting tools of the first named turret-head, designed to enter the grooves of a master key; a prime mover; a driving shaft actuated by the prime mover; coupling means at one end of the driving shaft and also on the shafts of the cutting tools adapted upon longitudinally shifting the driving shaft, to couple the driving shaft with the cooperating coupling means carried by the shafts of the respective cutting tools, whereby the latter may be actuated; manually operated means for longitudinally shifting the drive shaft into or out of coupling relation with the cutters; and means for sup porting a master key and a key blank, adapted to be shifted into the path of a suitable cutter and corresponding guide member carried by the turret-heads, whereby the master key'may be duplicated in the key blank.

l. In a machine of the character described, the combination of a supporting frame; a prime mover; a driving shaft actuated by the prime mover a manually rotatable unit jourin the frame parallel with and actuated by thedriving shaft; a manually slidable rocking member mounted upon the threaded shaft having a divided upper portion slidable upon posts carried by the lower portion, a pair of clamping members carried by said upper portion respectively adapted to grip amaster key and a key blank; manually operated means for coupling and uncoupling the slidable rocking member with the helical portion of the shaft, whereby said rocking member may be either mechanically ormanually shifted longitudinally upon said helical shaft and means for raising and lowering the upper portion of said rocking member including the clamping members and master key and key blank in relation to the cutters and guides, whereby either upper or side wards may be out in the key blank as required.

5. In a machine of the character described, in combination With a supporting frame; a driving shaft; a manually rotatable unit journaled in the frame, a plurality of cutting tools and a plurality of longitudinally aligned adjustable guide members mounted in spaced relation to each other in said rotatable unit; means for interchangeably coupling the respective cutting tools with the driving shaft; a longitudinally extending threaded shaft journaled in, the frame parallel with and actuated by the driving shaft; a manually slidable rocking member mounted upon the threaded shaft having a divided upper portion movable vertically upon posts carried by the lower portion; a pair of clamplng members carried by said upper portion a respectively adapted to grip a master key and p a key blank; manually operated means for raising, lowering and gripping theupper portion of the rocking-member upon and to the posts when adjusted, a manually operable tilting arm carried by and pivoted to said rocking member, adapted for cooperative engagement with the helical portion of the shaft on which the rocking member is slidably mounted, whereby said rocking member may be driven longitudinally along the shaft, or released for manual adjustment upon the shaft as required.

6. A machine of the character described,

in combination with a supporting frame; a' .vertically disposed rotatable turret head journaled in the frame; a rotatable cutting tool mounted upon a short radial shaft extending through the rim of the vertically disposed rotatable turret head from a chamber therein; a worm gear mounted on said shaft within the chamber; a transverse shaft ournaled in the walls of the vertically rotatable turret head fitted with a worm gear in mesh with the wormv gear on the radial shaft of the cutting tool; a driving'shaft; means for coupling the driving shaft with the trans verse shaft; and manually operated means for shifting the driving shaft into coupling relation with said transverse shaft, to drive the cutting tool.

7. In combination with a machine of the character defined in claim 6, a rectangular shaped guide member, spaced in longitudinal alignment from the rotatable cutting tool, adapted to enter the ward groove in a master key, whereby a ward groove may be cut by said cutting tool in a key blank, to

- correspond in depth to the groove in the master key as determined by the rectangular guide member upon entering said groove in the master key.

In testimony whereof, I sign this specification.

HARRY BEISSER. 

